Tuna are among the top predators in the oceans. But the hunter is also the hunted: many species are overfished. Can we use the riches of the oceans without destroying them?
Uli Kunz
Score: 5.8
Score: 5.1
Score: 6.0
Score: 5.8
Score: 7.0
Score: 5.6
Score: 7.1
Score: 7.2
